Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namenormalized-opb/mps-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-net12.opb
MD5SUM40130e6166f7a0beafce467effb99573
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 214
Optimality of the best value was proved NO
Number of terms in the objective function 39
Biggest coefficient in the objective function 20
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 337
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 1536
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 17129
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark146.223
Number of variables109859
Total number of constraints28136
Number of constraints which are clauses12
Number of constraints which are cardinality constraints (but not clauses)1994
Number of constraints which are nor clauses,nor cardinality constraints26130
Minimum length of a constraint1
Maximum length of a constraint223

Trace number 25756 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-22 07:36:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17811 boxname=wulflinc31 idbench=1371 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  40130e6166f7a0beafce467effb99573  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-net12.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-net12.opb
IDLAUNCH: 17811
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        906644 kB
Buffers:          7928 kB
Cached:          99292 kB
SwapCached:        900 kB
Active:          68336 kB
Inactive:        41012 kB
HighTotal:      131008 kB
HighFree:        28980 kB
LowTotal:       903652 kB
LowFree:        877664 kB
SwapTotal:     2097892 kB
SwapFree:      2095960 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5096 kB
Slab:            12712 kB
Committed_AS:    63840 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-22 07:37:26 (client local time) WITH STATUS 0 IN 64.6582 SECONDS
stats: 17811 7 64.6582 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 109859 variables and 27085 constraints.
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.86 0.94 0.95 2/55 21457
Raw data (stat): 21457 (runsolver) R 21456 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 811185039 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0009 s]
Raw data (loadavg): 0.88 0.94 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 86982 0 0 0 814 181 0 0 25 0 1 0 811185039 369012736 86788 4294967295 134512640 134714508 3221221776 3221219844 1077314211 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 90091 86788 1111 63 0 90028 0
vsize: 360364
[startup+20.0014 s]
Raw data (loadavg): 0.90 0.94 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 155169 0 0 0 1677 318 0 0 25 0 1 0 811185039 646836224 154541 4294967295 134512640 134714508 3221221776 3221220060 1077399562 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 157919 154541 1111 63 0 157856 0
vsize: 631676
[startup+30.002 s]
Raw data (loadavg): 0.91 0.94 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 172102 0 0 0 2642 353 0 0 25 0 1 0 811185039 716029952 171474 4294967295 134512640 134714508 3221221776 3221220060 1077399560 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 174812 171474 1111 63 0 174749 0
vsize: 699248
[startup+40.0027 s]
Raw data (loadavg): 0.93 0.94 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 173010 0 0 0 3639 357 0 0 25 0 1 0 811185039 719814656 172382 4294967295 134512640 134714508 3221221776 3221220060 1077399562 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 175736 172382 1111 63 0 175673 0
vsize: 702944
[startup+50.0032 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 176885 0 0 0 4629 366 0 0 25 0 1 0 811185039 735719424 176257 4294967295 134512640 134714508 3221221776 3221218540 1077196242 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 179619 176257 1111 63 0 179556 0
vsize: 718476
[startup+60.0099 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 178747 0 0 0 5625 371 0 0 25 0 1 0 811185039 743342080 178119 4294967295 134512640 134714508 3221221776 3221220064 134566780 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 181480 178119 1111 63 0 181417 0
vsize: 725920
[startup+65.5216 s]
Raw data (loadavg): 0.95 0.95 0.95 1/54 21457
Raw data (stat): 21457 (bsolo_lpr) R 21456 7876 7672 0 -1 0 178747 0 0 0 5625 371 0 0 25 0 1 0 811185039 743342080 178119 4294967295 134512640 134714508 3221221776 3221220064 134566780 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 181480 178119 1111 63 0 181417 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 65.5135
CPU time (s): 64.6582
CPU user time (s): 59.172
CPU system time (s): 5.48617
CPU usage (%): 98.6944
Max. virtual memory (Kb): 725920
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####